BadRequestHttpException: "The key "_username" must be a string, "NULL" given." at FormLoginAuthenticator.php line 125 #207
Description
Log shows the following exception multiple times a day. Seems like these errors are caused by empty POST requests (bots?) to /login_check, normal logins are not effected, so no priority
Uncaught PHP Exception Symfony\Component\HttpKernel\Exception\BadRequestHttpException: "The key "_username" must be a string, "NULL" given." at FormLoginAuthenticator.php line 125